1025481 has 4 divisors (see below), whose sum is σ = 1367312. Its totient is φ = 683652.

The previous prime is 1025477. The next prime is 1025483. The reversal of 1025481 is 1845201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1845201 = 3 ⋅615067.

It is not a de Polignac number, because 1025481 - 2² = 1025477 is a prime.

It is a super-2 number, since 2×1025481² = 2103222562722, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1025483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170911 + ... + 170916.

It is an arithmetic number, because the mean of its divisors is an integer number (341828).

2^1025481 is an apocalyptic number.

It is an amenable number.

1025481 is a deficient number, since it is larger than the sum of its proper divisors (341831).

1025481 is an equidigital number, since it uses as much as digits as its factorization.

1025481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341830.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1025481 is about 1012.6603576718. The cubic root of 1025481 is about 100.8422528518.

The spelling of 1025481 in words is "one million, twenty-five thousand, four hundred eighty-one".